ABA turbo question again

[vw_85roccoZ400 at hotmail.com (Brian Spinney)]

----- Original Message ----- 
From: "Dan Bubb" <jdbubb@verizon.net>
To: "David Brown" <sharpshooter33@roadrunner.com>; "scirocco scirocco" 
<scirocco-l@scirocco.org>
Sent: Tuesday, January 02, 2007 7:25 AM
Subject: Re: ABA turbo question again


I am not a 16vT guy in fact I know very little about 16v so please bare with 
me here.



Dan wrote "By my calculations the CR will be 7.9:1 with 16V head on either 
an ABA or 3A block with stock pistons."



I figure this isn't the easiest or best way to achieve a better CR ratio, 
could you deck the 16v head & have a machine shop add in more clearance to 
the intake cutout, and add an exhaust cutout??



You could probably turbo a 9A, but with its 10:1 or 10.5:1 or 10.8:1 (or 
whatever anybody claims!) you'd be limited to pretty low boost like 5 psi or 
so."



But couldn't he get away with running lower compression pistons in this 
case?

-Brian
85 Scirocco 8vT       01 Jetta 20vT       84 Rabbit GTI
86 Bronze Scirocco 8v

From: "David Brown" <sharpshooter33@roadrunner.com>
Sent: Tuesday, January 02, 2007 12:36 AM
Subject: ABA turbo question again


Ok so I gotta ask this again because maybe I read it wrong earlier.  If I 
use a ABA block n pistons or a 3A block n pistons with a 16V 1.8 head will I 
get a compression that is workable for a turbo?  Would there be any other 
issues with this setup( head block piston combination?)?


Or do I need to look at WIseco low compression pistons?  I was thinking that 
I would only need to lower the compression if I used a 9A which had 16v 
Pistons in it???

Thanks
David
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